Pith Number

pith:YR3ISJTT

pith:2018:YR3ISJTTOFXGTEMQW3M6EB7UFB

not attested not anchored not stored refs pending

More robust estimation of sample average treatment effects using Kernel Optimal Matching in an observational study of spine surgical interventions

Brenton Pennicooke, Michele Santacatterina, Nathan Kallus

arxiv:1811.04274 v2 · 2018-11-10 · stat.ME

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YR3ISJTTOFXGTEMQW3M6EB7UFB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:45:25.960068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c476892673716e699190b6d9e207f4286eaf9ffe2622d1e0065f44de35631529

Aliases

arxiv: 1811.04274 · arxiv_version: 1811.04274v2 · doi: 10.48550/arxiv.1811.04274 · pith_short_12: YR3ISJTTOFXG · pith_short_16: YR3ISJTTOFXGTEMQ · pith_short_8: YR3ISJTT

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/YR3ISJTTOFXGTEMQW3M6EB7UFB \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: c476892673716e699190b6d9e207f4286eaf9ffe2622d1e0065f44de35631529

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd662c6803e2e2895cc9cf4031318eadb8b28913eb38b2cde54f55f87ae8a878",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2018-11-10T15:47:18Z",
    "title_canon_sha256": "260d2c022dacac32876f61a2e4ff490c4e4ee0130492ba3baff40a0bfaa875f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.04274",
    "kind": "arxiv",
    "version": 2
  }
}